FWIW: I run XTR V-brakes and Avid Levers on my SS 91 Yo. It isn't period correct, and I have a stop on the back which goes un-used. However, I have come to discover that I really like the ride of these frames, but not necessarily all the hype over period correctness. V-brakes are so much more effective than most Cantis. If you want it to be super bitchen, use a set of Paul's, but for the expense, XTR or Avid V-brakes can't be beat.